Automatic regulator for dynamos



6 Sheets-Sheet 2.

(No Model.)

C. D. JENNEY.- AUTOMATIC REGULATOR FOR DYNAMOS.

No. 417,487. Patented Dec. 17, 1889.

www Mal 6 Sheets-Sheet 3.

(No Model.)

C. D. JENNEY.

. AUTOMATIC REGULATOR POR DYNAMOS.

Patented Dec. 1.7, 1889.

(No Model.) 6 sheets*sheet4.

C. D. JENNEY. l AUTOMATIC REGULATOR POR DYNAMOS. 110.417.487.

Patented Dec. 17, 1889.

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(No Model.) l 6 sheets-sheet 5.

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b AUTOMATIC REGULATOR FOR DYNAMOS. Y 10,417,481 Patented Dec. 17, 1889.

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(No Model.) 6 Sheets-Sheet 6.

C. D. JENNBY. AUTOMATIC REGULATOR TOR DTNAMOS.

Patented Dec. 17, 1889.

UNITED STATES PATENT OFFICE.

CHARLES D. JENNEY, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO THE THOMSON-HOUSTON ELECTRIC COMPANY, OF CONNECTICUT.

AUTOMATIC REGULATOR FOR DYNAMOS.

SPECIFICATION forming part of Letters Patent N o. 417,487, dated December 1'7, 1889. Application iled June 11, 1888-l Serial No. 276,734. (No model.)

To all whom t may concern:

Be it known that l, CHARLES D. JENNEY, a citizen of the United States, residing at Indianapolis,in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Automatic Regulators, of which the following is a speciiication. The object of my said invention is to produce an automatic regulator forelectric-light machines, especially that class of dynamos used in incandescent lighting.

The leading feature of my present invention consists in the arrangement of continually-revolving Wheels in such relation to properly-connected electro-magnets that when said magnets are energized said Wheels will be operated as armatures, and thus drawn into engagement with a suitably-constructed.clutch by which other mechanism is operated, and a greater or less proportion of the resistance in a properly-connected rheostat thus cut into or out o f the circuit.

My invention further consists in the construction and arrangement of certain parts of this apparatus, as will be hereinafter more particularly described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure l is a front elevation of a reguside elevation of the same; Fig. 3, a central vertical sectional view looking toward the right from the dotted line 3 3 in Fig. 1; Fig. 4, a top or plan view of the apparatus, but arranged somewhat ditferently, so thatv the controlling-magnet shall not be hidden by the other mechanism; Fig. 5, a horizontal sectional view, on an enlarged scale, looking upwardly from the dotted line 5 5 in Figs. l, 2,

Land 3; Fig. 6, a diagram of electrical connections, illustrating the use of my improved apparatus when arranged for use with an incandescent-electric-light plant on the multiple orconstant-potential system, (the apparatus being also shown as arranged for this system in the preceding figures of drawings and Fig. 7, a similar view to Fig. 6, except that the invention is shown in connection with the series or constant-current system.

In said drawings, the portions marked A outgoing line-wire; C, the incoming line-wire; D, a controlling-magnet set into a shuntcir cuit; E e, contact-points with which the bar carrying the armature of said magnet will under certain conditions come in contact; F F the electro-magnets by which the revolving wheels are operated; G G', said revolving Wheels; H, aV hollow shaft carrying a Worm gear-wheel z', and mounted on the same shaft with said revolving wheels; I, a pivoted bar operated by said worm-gear and connected at one end to a wire running to the dynamo and adapted to come in contact with contactplates connected to the various resistancecoils at the other; J K, the wires by which the rheostat and the shunt-magnet of the dynamo field are connected in circuit.

The mechanical construction of the dynamo and of many of the other parts may be any that is desired, and the description of such parts will therefore beV brief.

In Fig. 6, which illustrates the principal features of the invention, the main lines are shown running out, as usual, and anumber of lamps are represented by small circles between two wires. The lines running to the lamps are in some cases shown as parted, indicatin g that these lamps are cut out. Branch wires b and c run from the line-wires B and C to the magnet D, and the branch b is also shown as connecting the branch wire b with the pivoted bar on which the armature D to saidv magnet is mounted. A spring D2 is shown as connected to said bar on the other side, and when the potential between the mains is normal said bar is thus held equidistant between the contact-points E and c. Vhen, however, the pressure becomes too great and the magnet D thus energized beyond the .capacity of the spring D2 to resist, it draws the armature D toward it, bringing the pivoted bar d in contact with the contactpoint E, and the current then flows by way of the branch wire b', said pivoted bar, said contact-point, and the wire E to the electromagnet F', which is thereby energized and draws the wheel G toward it, bringing said wheel into engagement with the clutch h', and said clutch, being rigidly connected to the shaft H, revolves said shaft, and through represent a dynamo-electric machine; B, the

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the wormgear operates the barl to cut in more resistance and restore the equality of electrical pressure upon the lines. Then the pressure upon the lines becomes too weak, the energy of the electro-magnet D decreases until the force of the spring D2 draws the pivoted bar CZ into contact with the contact-point e, when the current flows th rough said contactpoint and the wire e to the electro-magnet F, which, being thus energized, draws the revolving Wheel G, (which revolves in the oppo site direction from the wheel GQ) into contact with the clutch h, which, in similar manner as before described, operates the bar I, but in the opposite direction, and cuts out enough fof the resistance to equalize the electrical pressure. The current from the electro-magnets F and F returns in either case over the wire c to the branch wire c, and thence to the main-line wire C. The resistance is kept in circuit by means of the wires .I and K, as will be readily understood. As before stated, Figs. l to 5, inclusive, are illustrative of the apparatus as I have constructed it; but it is obvious that the construction may be widely varied without departingv from my invention. The circuits and course of the currents may also be varied in many ways,'and I do not wishto limit myself in such matt-ers to any particular construction or arrangement. There are some features in the construction, however, which I regard as of importance and will now proceed to describe in detail.

The electro-magnets F and F', as before stated, are so arranged that when energized they will exert an attracting force upon the wheels G and G', which are loosely mounted upon their shaft, and are thus capable of being drawn toward the poles f and f of said electro-magnets. Referring now particularly to Fig. 5, it will be noticed that the wheels G and G', while loosely mounted upon the shaft H, are connected through the parts g and g with coiled springs g2, secured in longitudinal cavities formed in the ends of said shaft, and are thus held away from the clutches h and h until the force of said coiled springs is overcome by the attraction of the magnets. Ihen, however, the magnets are energized and said spring force thus overcome, the wheels are moved slightly until the studs g3 thereon are brought into contact with the corresponding studs 712 on said clutches. Said clutches being secured iixedly on the shaft H, said shaft is thus revolved, and through the worin-gear operates the bar I, as before described and as will be readily understood. The wheels G are kept in continual rotation by means of the belt G2, which passes around one, then over the idle-wheel G3, and thence around the other, which has the effect to keep said wheels G and G revolving in opposite directions at all times,

Having thus fully described my said invention, what I claim as new, and desire to secure by Let-ters Patent, is-

l. The combination, in an automatic regulator, of electromagnets set into a circuitand loosely-mounted revolving operating-wheels set near the poles of said magnets, (which are -also armatures for said magnets,) whereby,

when one of said magnets is energized, a wheel will be forced toward or from said magnet, and the mechanism for c`utting the resistance in or out thus operated.

2. The combination of a revolving wheelv mounted loosely upon a shaft, a spring by which said wheel is normally held in a certain location on said shaft, a clutch part fix-A edly attached to said shaft, and an electrolnagnet by which, when energized, said wheel (which is also the armature for said electromagnet) will be drawn into engagen'ient with said clutch part, and said shaft thus caused 'to revolve with said wheel, substantially as set forth.

3. The combination, in an automatic regulator, of the operating-wheels G and G, the idle-wheel G3, the single belt G2, arranged to drive all of said wheels, the clutch-bars hand 7L', the shaft H, the worm-gear, and a bar by `which the resistance is controlled operated by said gear, substantially as set forth.

4. The combination, in an automatic regulator, with the resistance-coils, and mechanism for operating the bar b ywhich the amount -of resistance is determined, of two wheels loosely revolving in opposite directions upon the same shaft, two clutch-bars iixedly selcured to said shaft alongside said wheels, and two electro-magnets the poles of which are arranged near to said wheels, whereby, when one of said electrofmagnets is energized, one of said wheels will be forced by said magnet into engagement with one of said clutches and said bar be moved in one direction, and when the other magnet is energized the other of said wheels will be forced by said magnet into engagement with the other of said clutches, and said bar be thus moved in the other direction.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 4th day of June, A. D. 1888.

CHARLES D. JENNEY. [n s] Witnesses:

E. W. BRADFORD, F. W. Woon.

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